A Corrosion Detection Method for Steel Strands Based on LC Electromagnetic Resonance

Table 12

Reliability analysis of measuring corrosion rate.

Test number	Sum of residuals	R^2	Significant test value |t|	Significant level
Test one	0.19851	0.99803	55.16149	Significant
Test two	0.08707	0.99906	79.68127	Significant
Test three	0.12596	0.99863	66.2417	Significant
Test four	0.1923	0.99775	51.6377	Significant
Test five	0.29552	0.99686	43.68697	Significant
Test six	0.09359	0.99903	78.43202	Significant

Note: the significance level α = 0.05, the number of curve points per sample is 7, n = 7; critical t value: tα/2 (n − 2) = 2.5706.